Statistics Class

I am taking an online college statistics class. The book uses Excel in its examples. I am loathe to crank open my old laptop (a PC) to use Excel. Excel has a statistics plug-in to use and, as far as anybody knows (and many different searches on Google) such does not exist for Numbers 09.

Fine. I'll get by with a calculator and some paper. I've downloaded the PDF guide and have watched various videos and so on. What I am asking is if there is any tutorial or video geared primarly (if not entirely) for statistics use (that means confidence intervals and standard deviation at a minimum and, dare I dream, Chi Square and T tests).

It is also supremely annoying that I cannot find a Sample Mean symbol, an X-Bar (an X with a bar over the top of it) in the special characters. I've read on a billion blogs how this is two different symbols and blah blah blah... yet there are plenty of other symbols that have multiple parts to it, and among the thousands (it seems) of special characters (do I really need cherokee?) there isn't an x-bar or a p hat or q hat (a p with a ^ on the top of it).

iMac, Mac OS X (10.6.3), iWork 09

Posted on Apr 6, 2010 5:11 AM

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3 replies

Apr 6, 2010 7:54 AM in response to eddiecoyote

The bar over the x is created with a combining diacritical mark. The mark is unicode 305 (hex) to get x̅ or 304 (hex) if you want x̄.

Open up the character viewer (Edit/Special Characters). View by Code Tables and Unicode. Scroll down until you are in the 300's. Select character 305 and save it as a favorite.

In your document, type an x then double click in the code table on character 305. You can do this for every instance you want a x̅ or you can copy/paste the combined symbol.

You can do the same for p an whatever other characters need a bar or hat over them such as p̅ and q̂.

As far as statistics goes, Excel is the more feature rich application for statistics and has plug-ins. You may be "bucking the system" by using Numbers.

Apr 6, 2010 8:32 AM in response to eddiecoyote

eddiecoyote wrote:
It is also supremely annoying that I cannot find a Sample Mean symbol, an X-Bar (an X with a bar over the top of it) in the special characters. I've read on a billion blogs how this is two different symbols and blah blah blah... yet there are plenty of other symbols that have multiple parts to it, and among the thousands (it seems) of special characters (do I really need cherokee?) there isn't an x-bar or a p hat or q hat (a p with a ^ on the top of it).



This isn't an Apple feature.
It just seems that the structure defining the Unicode Standard never ask advice of statisticians.

Remember one important thing : without cherokee beeings, many American citizen wouldn't exist so a bit of respect for this language would be welcome !

Yvan KOENIG (VALLAURIS, France) mardi 6 avril 2010 17:32:05

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Statistics Class

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